Chapter 20
Harry Potter Hogwarts Mystery
Hello everyone, welcome to our Walkthrough for Chapter Twenty of Year Six of Harry Potter Hogwarts Mystery. Last time, pretty much everyone at Hogwarts gathered in the Great Hall to give one last goodbye to Rowan, who tragically died protecting his friends. Everyone was very shocked about this, and sadness was ever-present in the vast hall. Professor Dumbledore held a speech and reminded everyone of Rowan’s selfless sacrifice. Later on, you took some time to mourn your friend, and after a while, you were informed that the Dementors have left Hogwarts since the Azkaban escapee is no longer within the castle’s parameters. You also met with Merula and Ben, and after discussing things for a while, you decided to form your own secret organization in order to fight ‘R’. You’ll need to inform your other friends about this, but before that, you should finish the lessons. Proceed to the Potions classroom when you are ready.

To unlock the Dreamless Sleep Potion lesson, you’ll need to acquire a total of nine stars from Potions classes. As usual, select the class duration suitable to your liking, and hit the Start to begin.

Prioritize 5-cost actions whenever you see them available in order to save some energy and complete the classes faster.

Also, try your best to complete all of the mini-tasks successfully since these will award you some bonus Knowledge points.

Upon obtaining enough stars to unlock the lesson, head back to the classroom to attend it.

Learning to brew Dreamless Sleep Potion requires earning five stars within three hours. All five stars are needed to pass, so avoid starting this task if you’re out of energy.

For the most part, this lesson is fairly similar to the regular Potions classes. Pay attention to some of the mini-tasks, since they are unique to this lesson.

Upon earning the fifth star, you’ll need to finish the potion. Trace the wand movement on the screen to wave your wand over the cauldron.

For the second lesson, proceed to the Care of Magical Creatures.

Unlocking Thestral lesson requires earning nine stars from Care of Magical Creatures classes. Select the class duration that suits you the most and hit Start when you’re ready to begin.

Like before, focus on 5-cost actions if you’re looking to save some energy.

Successfully completing mini-tasks will award you some additional Courage points.

Once the lesson is unlocked, head back to Care of Magical Creatures to attend it.

Completing this lesson requires earning five stars within three hours. All five stars are needed to pass, which is why it’s recommended not to begin this one if you’re low on energy.

While doing this lesson, you’ll realize that not many of your friends are capable of seeing Thestrals.

Lastly, upon earning all five stars, you’ll be tasked with sketching the Thestral. You might notice that while my character is clearly capable of seeing this magnificent creature, he’s definitely not able to see the chair he’s supposed to be sitting on.

Now that the lessons are done, you can proceed to the Hog’s Head Inn to meet with your friends.

Upon arriving, you’ll be able to interact with some of the characters before continuing.

You’ll immediately notice that most of your friends have arrived to hear you out.

After greeting everyone, you’ll warn them that what you’re about to say is for their ears only.

You’ll remind everyone of Rowan’s heroic sacrifice before you start explaining things.

And you will tell them that it’s about time to do something.

Merula will cut your explanation short and get straight to the point.


However, there are some things your friends ought to know before deciding whether or not they want to join your secret organization.


Informing your friends requires earning five stars within three hours. Three stars are needed to pass.

There are 5-cost actions linked to Badeea and your character. Prioritize those if you want to save some energy.

When you’re done, your friends will finally understand what’s going on.


You’ll also mention that the final vault is more than likely located somewhere around the Black Lake.

Penny and Charlie will also confirm your story.


You’ll also mention the grim warning you received from ‘R’ earlier.

This time, however, you will decide to keep all of your friends informed.


In any case, your chances of defeating ‘R’ will be much higher if all of you are together.

Ismelda will ask one of the most obvious questions.

Unfortunately, you can only say for sure that Rakepick and Azkaban escapee are working for ‘R’.


Tulip and Talbott will eventually sum up everything you know.


You will also mention that defeating ‘R’ and bringing Rakepick to justice would be a great way to honor Rowan.


Tonks will break the ice saying she’s more than willing to help you with this.

The most powerful witch at Hogwarts will cut it short for everyone else.

Thankfully, not a single one of your friends will leave.


Liz will be curious to know what to do next.

You’ll quickly provide some answers to her and the rest of your friends.


Still, it might be a bit difficult to maintain all of the secrecy.


Barnaby will suggest choosing a name for your organization.

Ben will quickly propose one.

Merula will actually like this name.

And so will some of your other friends.


It’s decided. Your secret organization shall be named Circle of Khanna.


Next, you’ll need to meet with Merula. However, there’s a waiting period of three hours before you can continue. Since your energy is likely low following the previous task, it is somewhat recommended simply to wait until this timer expires. That will be enough time for your energy to fully regenerate.

Once the waiting time is over, head to the Defence Against the Dark Arts classroom to meet with Merula.

When you arrive, you’ll be very surprised to see Beatrice hanging around.


Well, that’s one person who already knows about your ‘secret’ organization.

As for Merula, she’s very determined to take care of Rakepick.


According to Beatrice, the three of them gathered to study some cursed and Dark artifacts.

Still, you’ll be curious to know if Penny is aware of Beatrice’s involvement.

Apparently, that question was pointless. Beatrice will ask if you plan to tell Penny about it. This question won’t have much influence on the story, so you can feel free to take your pick. However, if you like Penny, it is somewhat recommended to pick the first option.

Moments later, Penny will arrive. As it appears, Cedric already informed her about Beatrice.

However, she didn’t come to argue with her sister.

You’ll kindly ask her to explain everything.

Listening to Penny requires earning five stars within three hours. Three stars are needed to pass.

There are some 5-cost actions linked to Penny. Prioritize these if you want to save some energy.

When you are done, Penny will explain why she arrived.




Beatrice will definitely be touched by her sister’s words.

As for Ismelda, she’ll question if it was the right decision to include Penny in your organization in the first place.

For the first time in quite a while, Beatrice will stand up for her sister.



Needless to say, Penny will be more than happy with this turn of events.

Suddenly, Jae will barge in. Apparently, he has heard some of your conversation.

You’ll be confused by his sudden entrance.

Instead of providing an explanation, he’ll simply ask you to follow him.

Unfortunately, you’ll have to wait for two hours before you can do that. Still, your energy is likely low at this point, so just wait until the timer runs out and let your energy replenish in the process.

Once you’re able to continue, proceed to the Transfiguration classroom.

As you arrive, you’ll instantly notice that pretty much all of the mischief-makers are in the classroom. Tap on the speech bubbles if you want to interact with some of them.

Once she sees you, Tulip will ask if you’re all right after everything that happened. There are three options to respond with. There’s no wrong answer here, so simply follow your feelings for this one.

You’ll thank her for being concerned about your wellbeing.

You will notice Jae approaching, and you’ll ask him about the Weasley twins.

Apparently, both of them are interested in joining the Circle of Khanna.


Still, you’ll be curious to know what they’re up to.

Tulip will be more than happy to sate your curiosity.

Discussing their plan requires earning five stars within three hours. Only three stars are needed to pass.

There are 5-cost actions linked to Andre and Jae. Prioritize these if you want to save some energy.

Upon completing the task, you’ll learn their plan.

As for the Weasley twins, they are more than willing to lend their help.

Charlie will suddenly enter the classroom and he’ll be very surprised to see his younger siblings.

Both Fred and George will quickly hide. Unfortunately, subtlety isn’t their strong suit.


For the time being, Charlie will be willing to let this slide. As a matter of fact, he came looking for you.

He’ll ask you to follow him.

Head to the Care of Magical Creatures when you are ready.

When you arrive, you’ll notice a lot of marine creatures near Liz and Barnaby.

Apparently, a Murtlap named Hester is missing.


Anyway, your friends will be glad to provide an explanation, but first, you’ll have to help them find Hester.

Doing so requires earning five stars within eight hours. Three stars are needed to pass.

Be sure to slide the screen left and right to see all the available actions. There are 5-cost actions tied to Charlie and one of the trees.

When you’re done, you’ll locate the missing Murtlap.


Barnaby will be very grateful to you for helping him find Hester.

Your friends will then start explaining their plan.



It looks like Liz already informed Barnaby and Charlie about the conversation you eavesdropped on.


According to her, it looks like the final vault is having an effect on Grindylows.


Charlie will ask you about everyone’s training plans. There are two options to respond with. None of these will have any significant influence on the story, so feel free to take your pick.

Soon enough, you’ll decide to go to the Library to meet with Talbott and Badeea.

Proceed there when you are ready.

Upon arriving, you’ll be able to interact with some of the characters.

It looks like Badeea and Talbott were busy working on something.

She’ll decide to show it to you.

Badeea will wave her wand, and the picture will start appearing.


Exploring their map requires earning five stars within three hours. One star is needed to pass.

There are 5-cost actions linked to Talbott, Badeea, and the map. Prioritize these if you’re looking to save some energy.

By the looks of it, the two of them are trying to create a map that will help you locate the final cursed vault.

It seems that the two of them make quite a good team.


Needless to say, you’ll be very impressed by their progress.

Still, there are some areas that are more difficult to explore.


Moments later, Madam Pince will approach and kindly ask you to leave the Library.

You’ll suggest going to the Training Grounds.

However, before you can do that, there is a waiting period of two hours. Like before, it is recommended simply to wait until this timer runs out.

Once the waiting time is over, proceed to the Training Grounds to meet with your friends.

However, instead of Talbott and Badeea, you will find Ben, Cedric, and Diego.


Apparently, Cedric is well-aware of your secret organization. In fact, it was Ben who informed him about it.

According to Diego, Cedric is very skilled when it comes to dueling.

By the looks of it, they’ve been practicing for hours.

Diego will suggest taking a break.

As for Ben, he’s not planning to stop training anytime soon.

You’ll try reasoning with him.

In the end, he’ll agree to have a word with you if you can defeat him in a duel.

The task window will display recommended attribute levels as well as the cost of each attempt. When you’re ready, hit Start to begin.

The attribute requirements for this duel are fairly low, which should give you a significant advantage. Still, Ben has a couple of tricks up his sleeve, so if you get unlucky, you can lose the duel. One of the strategies to use here would involve going Aggressive and hitting him with Depulso. Depending on your attribute levels, you should be able to defeat him in 2-3 rounds.

Ben will be very angry once you defeat him.


You’ll try your best to calm him down.

You will also point out that training to exhaustion is not the answer.

This is when you’ll notice how much he was affected by Rowan’s death.

Because of that, he wants to train as much as possible in order to prevent anyone else from being killed. You have two options to respond with. If you like Ben, it is recommended to pick the first option.

You’ll then tell him that Rowan was following you into the forest.


However, before you can say more, Professor McGonagall will arrive, saying that the Headmaster wants to have a word with you.


Moments later, Chapter 20 of Year 6 will come to an end. Hit the Collect button to claim your rewards.

What does Professor Dumbledore want to talk to you about? Could it be that he knows about the Circle of Khanna? Find out in the next chapter of Harry Potter Hogwarts Mystery.
Thank you for reading.
